Final answer:
Mr. Kraler is the main link to the outside world in Anne Frank's diary as he provides support and updates from the outside during her time in hiding.
Step-by-step explanation:
In the reading of Anne Frank's diary, the main link to the outside world is Mr. Kraler. Mr. Kraler, along with Miep Gies, are the two helpers who hide Anne and her family during the Holocaust. They help to provide food, supplies, updates on the war, and any other news from the outside world. This is why Mr. Kraler could be seen as the primary link to the outside world.
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